首页
登录
职称英语
[originaltext]W: You’ve read an article about human bones. Are there any commen
[originaltext]W: You’ve read an article about human bones. Are there any commen
游客
2023-08-17
55
管理
问题
W: You’ve read an article about human bones. Are there any comments about it?
M: I was surprised to find out there was so much going on in bones. I always assumed they were pretty lifeless.
W: In fact, bones are made of dynamic living tissue that requires continuous maintenance and repair.
M: Right. That’s one of the things I found so fascinating about the article—the way the bones repair themselves.
W: Can you tell us how the bones repair themselves?
M: Sure. There are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it.
W: Well said, what about the second group?
M: After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.
W: Very good. This is a very complex process. In fact, the scientists who study human bones don’t completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesn’t completely fill in the hole. It can lead to a disease in which the bone becomes weak and is easily broken.
M: Ok, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue.[8] That’ll prevent the disease from ever occurring.
5 What are the two speakers mainly talking about?
6 What is the function of the first group of specialized cells?
7 What does the woman say about scientists who study the specialized cells in human bones?
8 What benefit will it bring if scientists find out what makes the specialized cells work?
选项
A、It breaks down the bone tissue.
B、It produces the new tissue.
C、It fills in the bone holes.
D、It completely repairs the bones.
答案
A
解析
①从各选项可以推断问题问的是It的作用,It此处指的是第一个细胞群。②在谈论骨骼的两个不同的特殊细胞群时,女士指出第一个细胞群能够产生一种化学物质,破坏骨组织,并且在上面留下一个洞。故选A。
转载请注明原文地址:http://tihaiku.com/zcyy/2934103.html
相关试题推荐
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
Forthispart,youareallowed30minutestowriteanessaycommentingonthere
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
SaveforCollege[A]Inthisarticle,we’lllookatt
随机试题
Inviewoftheobstaclesinlaunchingnewindustriesforwhichaccesstomark
TheAmericaneducationsystemrequiresthatstudentscomplete12yearsofpr
[originaltext]W:Wakeup,Eric.Timetoriseandshine.M:Huh.Oh,hi,Jane.I
肱骨干中下1/3骨折常并发()A.肱动脉损伤 B.贵要静脉损伤 C.桡神
儿童高热首选的药物是()A:美洛昔康 B:尼美舒利 C:对乙酰氨基酚 D
下列哪种心脏瓣膜病最可能发生晕厥A.二尖瓣狭窄 B.主动脉瓣狭窄 C.
《变电运维管理规定》:带电检测异常处理:检测人员检测过程发现数据异常,应立即上报
在近端小管,以单纯扩散形式被重吸收的是 A.Na+B.HCO3-C.H
我国上市公司从历史形成来源分类,包括()。A:有限责任公司整体变更成股份有限公司
关于装配式预制混凝土梁存放的说法,正确的是( )。A.预制梁可直接支撑在混凝土存
最新回复
(
0
)